Not sure what this insect is that's leaving squiggly lines on my leaves, like a 2 year old with a crayon! I've noticed it happening to my pepper and rose plants before, and now this is on my cucumber plant. I thought I had controlled it using neem oil, but this morning there was a noticeable increase in number of leaves with this pattern, as well as some discoloration. I sprayed with some neem oil again and some BT. They were fertilized yesterday. What can I do? Will it affect my cucumbers? It's a young plant so the fruits are just starting out.